As the community is moving to adopt more inclusive terminology we are planning on renaming the default branch of all mantidproject repositories from master to main. For more information see Why GitHub renamed its master branch to main.
The mantid 6.2 release is planned for Monday 27th September but should that move we will wait until that has been successfully deployed in order to minimize confusion while preparing the release. For more information on what this affects please see https://github.com/github/renaming.
We will send out a further annoucement once we are closer with instructions for moving forward.